"Four Steps" after Chestnut Harvesting

The beginning of September-October is the beginning of the flower bud differentiation of the next year's chestnut tree formation. The quality of the post-harvest management directly affects the output of the next year. Footsteps are especially important. The four steps of chestnut postharvest management are briefly introduced as follows:

1. Reasonable fertilization to "eat" the feet. Generally, every 100 kg of chestnut mature consumes 4.5-5 kg ​​of pure nitrogen and potassium, and 1.5-2 kg of phosphorus. Fertilizer should be replenished in time after the fruit is picked, and the fertilizer applied is mainly organic fertilizer. Generally 8-10 years old trees, 50-60 kg of manure per plant, 0.5 kg of urea, 1 kg of phosphate fertilizer; trees more than 10 years old, increase the amount of fertilizer according to the amount of fruit.

2. Irrigation water to fight drought, give feet "drink". After the fruit is harvested, the water loss in the tree is very large. In addition, the autumn and winter droughts are generally more severe in the agricultural season, and the chestnut tree is likely to be drought. You also need to irrigate at the right time.

3. Cultivate the soil and give the feet "wear". In mid-to-late November, depending on the size of each tree, 2-4 burdens of rotten garbage and pond mud are laid under the canopy with the trunk as the center, and a layer of fine soil is covered thereon. When the temperature rises in Hunchun, dig again to facilitate ventilation and long roots, while reducing weed growth.

4. Prevent insects and treat diseases and carry out "health care". Clear the garden in time after picking the fruits, cut off dead branches, diseased and insect branches, remove the diseased insects and leaves that have fallen off the ground, and burn them intensively or bury them deeply. Autumn chestnut tree pests and diseases should be timely applied to prevent and cure pesticides, such as double Bordeaux solution, 40% omethoate emulsion 1500-2000 times, 2.5% enemy killing cream 8000 times.

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